Datasheet > TPSM82903SISR

TPSM82903SISR

更新时间： 2023-09-03 20:28:06

品牌	Logo	应用领域
德州仪器 - TI		电感器转换器
页数	文件大小	规格书
42页	4867K
描述
具有集成电感器的 3V 至 17V、3A 高效率、低 IQ 同步降压转换器模块 \| SIS \| 11 \| -40 to 125

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TPSM82903SISR 数据手册

TPSM82903

www.ti.com.cn

ZHCSPZ6B –FEBRUARY 2022 –REVISED NOVEMBER 2022

6.5 Electrical Characteristics (continued)

V_I= 3 V to 17 V, T_J= -40°C to +125°C, Typical values at V_I= 12.0 V and T_A= 25°C,unless otherwise noted

PARAMETER

TEST CONDITIONS

MIN

4.1

3.8

1.3

TYP

4.9

4.3

1.7

2.5

MAX

5.8

UNIT

High-side FET current limit

Low-side FET current limit

Low-side FET sink current limit

Switching frequency

Minimum On-time

I_LIM

4.7

I_{LIM_SINK}

f_SW

T_ON(MIN)

f_SW

2.5

2.5-MHz selection

MHz

Switching frequency

Dutycycle

1.0-MHz selection

1.0

MHz

R_PD

Dropout resistance

100% mode, V_IN> 4 V

100

mΩ

OUTPUT

VSET Configuration selected. T_J=

25°C.

V_{O_Reg1}

V_{O_Reg2}

V_{O_Reg3}

Output Voltage Regulation

+0.9%

+1.1%

–0.9%

–1.1%

VSET Configuration selected. 0 °C<

T_J< 85°C

VSET Configuration selected. –40°C

< T_J< 125°C

+1.25%

–1.25%

V_FB

Feedback Regulation Voltage

Feedback Voltage Regulation

Adjustable Configuration selected

FB-Option selected. T_J= 25°C.

FB-Option selected. 0°C < T_J< 85°C.

0.6

V_{FB_Reg1}

V_{FB_Reg2}

+0.6%

–0.6%

+0.65%

–0.65%

FB-Option selected. –40°C < T_J<

125°C

V_{FB_Reg3}

I_FB

Feedback Voltage Regulation

+0.9%

–0.9%

Input leakage current into FB pin

Adjustable configuration, VFB = 0.6 V

µs

I_O= 0 mA, time from EN=HIGH until

start switching, Adjustable

Configuration selected

Start-up delay time

600

1400

1850

T_delay

I_O= 0 mA, time from EN=HIGH until

start switching, VSET Configuration

selected. The typical value is based on

the first option of VSET configuration.

650

150

µs

I_O= 0 mA after T_delay, from 1^st

switching pulse until target V_O; TR/SS-

Pin = OPEN

T_SS

Soft-Start time

200

2.7

µs

I_SS

SS/TR source current

2.3

2.5

0.75

±8

µA

Tracking Gain, Adjustable

Configuration

V_FB/V_SS/TR

R_DISCH

Tracking Gain tolerance

Discharge = ON - Option Selected, EN

= LOW,

Active Discharge Resistance

7.5

Ω

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